Contacts of the helix formed by residues 332 - 355 (chain B) in PDB entry 4E2I


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with ASN 332 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339A  GLN*     4.0     0.7    -      -       -      +
    270B  TRP*     5.1     6.5    -      -       +      -
    330B  SER*     3.2    10.6    +      -       -      +
    331B  LYS*     1.3    93.4    -      -       -      +
    333B  GLN*     1.3    64.1    -      -       -      +
    334B  LYS      3.2     3.4    -      -       -      +
    335B  THR*     3.6    26.8    +      -       +      +
    336B  ILE*     3.0    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 333 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274A  THR*     5.1     7.3    +      -       -      +
    339A  GLN*     3.1    24.6    +      -       +      +
    343A  THR*     3.7    22.6    +      -       -      +
    289B  LEU*     3.2    26.7    -      -       +      +
    293B  LEU*     3.8    24.6    -      -       -      +
    327B  PHE*     3.3    39.7    -      -       +      +
    328B  ALA*     3.0    28.4    -      -       -      +
    330B  SER*     3.6    13.0    -      -       -      +
    332B  ASN*     1.3    77.7    -      -       -      +
    334B  LYS*     1.3    61.1    +      -       -      +
    337B  CYS*     3.6     9.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 334 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338A  GLN*     5.2     3.2    +      -       -      -
    339A  GLN*     4.6     7.2    -      -       +      +
    342A  ASP*     3.7    36.9    +      -       +      +
    512A  LYS*     4.9     9.7    -      -       -      +
    514A  LEU*     5.8     4.5    -      -       -      +
    516A  LYS*     4.7    17.6    -      -       -      +
    285B  VAL*     4.2    23.6    -      -       +      +
    286B  LEU*     4.6     7.6    -      -       +      -
    289B  LEU*     4.3    16.4    -      -       +      +
    332B  ASN*     3.2     0.6    -      -       -      +
    333B  GLN*     1.3    77.6    -      -       -      +
    335B  THR*     1.3    60.0    +      -       -      +
    337B  CYS*     4.0     3.3    -      -       -      +
    338B  GLN*     3.0    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 335 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270B  TRP*     3.6    24.0    -      -       +      -
    332B  ASN*     3.1    30.4    +      -       +      +
    334B  LYS*     1.3    77.7    -      -       -      +
    336B  ILE*     1.3    66.2    +      -       -      +
    338B  GLN*     3.1    16.3    +      -       +      +
    339B  GLN*     3.2    10.9    +      -       -      +
    331C  LYS      5.9     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 336 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    268B  VAL*     3.9    20.9    -      -       +      -
    269B  SER      4.6     0.7    -      -       -      +
    270B  TRP*     3.6    46.3    -      -       +      +
    273B  VAL*     3.6    34.2    -      -       +      +
    274B  THR*     5.3     1.4    +      -       -      -
    327B  PHE*     3.5    25.4    -      -       +      -
    330B  SER*     3.3    26.0    -      -       -      +
    332B  ASN*     3.0    14.5    +      -       +      +
    335B  THR*     1.3    77.0    -      -       -      +
    337B  CYS*     1.3    62.6    +      -       -      +
    339B  GLN*     3.6     4.7    +      -       -      +
    340B  ALA*     3.5    16.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 337 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273B  VAL*     4.2    13.9    -      -       -      -
    285B  VAL*     4.3     9.4    -      -       +      +
    288B  LEU*     3.4    15.3    -      -       +      +
    289B  LEU*     3.6    29.6    -      -       +      -
    292B  TYR*     4.7     2.2    -      -       -      -
    327B  PHE*     3.5    30.1    -      -       -      -
    333B  GLN      3.6     9.4    +      -       -      +
    334B  LYS*     4.3     3.4    -      -       -      +
    336B  ILE*     1.3    77.5    -      -       -      +
    338B  GLN*     1.3    64.5    +      -       -      +
    340B  ALA*     3.3    10.2    +      -       -      +
    341B  VAL*     3.0    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 338 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514A  LEU*     5.2    10.1    -      -       -      +
    285B  VAL*     3.3    37.7    -      -       +      +
    334B  LYS*     3.0    27.9    +      -       +      +
    335B  THR*     3.1    12.5    +      -       +      +
    337B  CYS*     1.3    76.7    -      -       -      +
    339B  GLN*     1.3    63.6    +      -       -      +
    341B  VAL*     3.1    20.3    +      -       -      +
    342B  ASP*     3.0    38.4    +      -       -      +
    334C  LYS*     5.3     3.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 339 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270B  TRP*     3.1    30.2    -      -       +      +
    274B  THR*     4.2     8.9    +      -       -      +
    335B  THR*     3.2     8.6    +      -       +      +
    336B  ILE      3.9     7.6    -      -       -      +
    338B  GLN*     1.3    79.5    -      -       -      +
    340B  ALA*     1.3    60.8    +      -       -      +
    342B  ASP*     3.2    14.4    +      -       +      +
    343B  THR*     2.9    25.4    +      -       -      +
    289C  LEU*     5.7     1.3    -      -       +      +
    328C  ALA      5.5     0.2    -      -       -      +
    330C  SER      3.2    19.0    +      -       -      +
    331C  LYS      3.5    12.7    +      -       -      -
    333C  GLN*     3.2    55.7    +      -       +      +
    334C  LYS*     4.8     5.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 340 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273B  VAL*     4.1     4.3    -      -       +      +
    274B  THR*     3.9    20.8    +      -       -      +
    277B  ALA*     3.5    13.9    -      -       +      +
    288B  LEU*     3.4    17.7    -      -       +      -
    336B  ILE      3.5    10.0    +      -       -      +
    337B  CYS*     3.3    11.2    +      -       -      +
    338B  GLN      3.2     0.6    -      -       -      -
    339B  GLN*     1.3    79.1    -      -       -      +
    341B  VAL*     1.3    63.4    +      -       -      +
    343B  THR*     3.0    11.7    +      -       -      -
    344B  VAL*     2.9    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 341 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282B  CYS      4.3     0.7    -      -       -      +
    283B  ASP*     3.5    30.5    -      -       -      +
    284B  ASP      3.1    28.7    -      -       -      +
    285B  VAL*     3.6    21.3    -      -       +      -
    288B  LEU*     3.9     5.6    -      -       +      -
    337B  CYS      3.0    17.3    -      -       -      +
    338B  GLN*     3.1    10.1    +      -       -      +
    340B  ALA*     1.3    77.6    -      -       -      +
    342B  ASP*     1.3    57.3    +      -       -      +
    344B  VAL*     3.0    11.7    +      -       -      +
    345B  LEU*     2.9    39.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 342 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338B  GLN*     3.0    36.3    +      -       -      +
    339B  GLN*     3.2    13.4    +      -       +      +
    341B  VAL*     1.3    77.3    -      -       -      +
    343B  THR*     1.3    58.4    +      -       -      +
    345B  LEU*     3.8    11.5    -      -       -      +
    346B  ALA*     2.8    30.0    +      -       -      +
    516B  LYS*     5.9     0.2    -      -       -      -
    286C  LEU*     3.7    26.2    -      -       +      +
    289C  LEU*     4.3    12.5    -      -       +      +
    334C  LYS*     4.0    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 343 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274B  THR*     3.6    27.2    -      -       +      +
    278B  MET*     3.5    31.2    -      -       +      +
    339B  GLN      2.9    14.4    +      -       -      -
    340B  ALA      3.0     9.3    +      -       -      -
    342B  ASP*     1.3    76.2    -      -       -      +
    344B  VAL*     1.3    62.0    +      -       -      +
    346B  ALA*     3.4     7.1    -      -       -      +
    347B  LYS*     3.1    16.3    +      -       -      +
    289C  LEU*     5.0     2.0    -      -       -      +
    293C  LEU*     3.9    23.0    -      -       +      +
    333C  GLN*     3.7    15.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 344 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277B  ALA*     3.7    28.7    -      -       +      +
    278B  MET*     4.3     8.5    -      -       -      +
    281B  LYS*     3.6    17.0    -      -       -      +
    282B  CYS      3.2    29.4    -      -       -      +
    283B  ASP*     4.0     4.7    -      -       +      +
    340B  ALA      2.9    21.1    +      -       -      +
    341B  VAL      3.0     6.7    +      -       -      +
    343B  THR*     1.3    75.5    -      -       -      +
    345B  LEU*     1.3    66.4    +      -       -      +
    347B  LYS*     3.1    20.0    +      -       +      +
    348B  LYS*     3.3    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 345 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283B  ASP*     3.9    29.4    -      -       +      +
    341B  VAL*     2.9    30.6    +      -       +      +
    342B  ASP*     4.0    10.5    -      -       -      +
    344B  VAL*     1.3    77.1    -      -       -      +
    346B  ALA*     1.3    57.7    +      -       -      +
    348B  LYS*     3.4    15.1    +      -       +      +
    349B  ARG*     2.8    30.7    +      -       -      +
    466B  ASP*     4.9     1.7    -      -       -      +
    511B  LYS*     4.3    30.1    -      -       +      +
    286C  LEU*     4.4    20.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 346 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342B  ASP      2.8    19.6    +      -       -      +
    343B  THR*     3.4    12.3    -      -       -      +
    345B  LEU*     1.3    75.0    -      -       -      +
    347B  LYS*     1.3    65.1    +      -       -      +
    349B  ARG*     3.1     9.7    +      -       -      +
    350B  VAL*     3.0    29.1    +      -       -      +
    286C  LEU*     3.7    22.0    -      -       +      +
    289C  LEU*     4.6     6.7    -      -       +      -
    290C  GLY*     3.8    17.7    -      -       -      +
    293C  LEU*     5.0     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 347 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    278B  MET*     3.9    28.1    -      -       +      +
    343B  THR      3.1    11.7    +      -       -      +
    344B  VAL*     3.1    12.2    +      -       +      +
    346B  ALA*     1.3    76.5    -      -       -      +
    348B  LYS*     1.3    56.9    +      -       +      +
    350B  VAL*     3.0    10.4    +      -       +      +
    351B  ASP*     2.7    56.8    +      -       -      +
    290C  GLY*     5.8     0.7    -      -       -      -
    294C  GLU*     4.6    14.6    +      -       -      +
    304C  LYS*     5.7     5.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 348 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281B  LYS*     3.7    24.7    +      -       -      +
    283B  ASP*     4.4    12.2    -      -       -      +
    344B  VAL*     3.3    35.9    +      -       -      +
    345B  LEU*     3.8    17.3    -      -       +      +
    347B  LYS*     1.3    81.5    -      -       +      +
    349B  ARG*     1.3    64.3    +      -       -      +
    351B  ASP*     4.0     8.8    -      -       -      +
    352B  SER*     3.1    27.4    +      -       -      -
    466B  ASP*     4.1    17.0    -      -       +      +
    467B  GLN*     5.5     9.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 349 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    345B  LEU*     2.8    15.1    +      -       -      +
    346B  ALA*     3.1    18.4    +      -       -      +
    348B  LYS*     1.3    77.1    -      -       -      +
    350B  VAL*     1.3    56.3    +      -       -      +
    352B  SER*     3.0    14.2    +      -       -      -
    353B  LEU*     4.0    10.0    -      -       -      +
    465B  ILE*     3.1    17.0    -      -       -      +
    466B  ASP*     3.0    28.9    +      -       -      -
    511B  LYS*     3.5    17.2    -      -       -      +
    516B  LYS*     2.9    36.2    +      -       -      +
    517B  ARG*     3.1    29.9    +      -       -      +
    284C  ASP*     4.6     1.3    +      -       -      -
    286C  LEU*     3.3    35.9    -      -       -      +
    287C  LEU*     3.7    31.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 350 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    346B  ALA      3.0    16.5    +      -       -      +
    347B  LYS*     3.0    10.7    +      -       +      +
    349B  ARG*     1.3    77.2    -      -       +      +
    351B  ASP*     1.3    62.1    +      -       -      +
    352B  SER      3.1     1.8    -      -       -      -
    353B  LEU*     2.9    22.6    +      -       -      +
    354B  GLN*     3.1    43.2    +      -       +      +
    287C  LEU*     4.7     8.3    -      -       +      +
    290C  GLY*     4.0    27.1    -      -       -      -
    291C  MET*     3.7    20.2    -      -       +      +
    294C  GLU*     4.4     9.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 351 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347B  LYS*     2.7    53.0    +      -       -      +
    348B  LYS*     3.9     7.7    +      -       -      +
    350B  VAL*     1.3    78.4    -      -       -      +
    352B  SER*     1.3    58.5    +      -       -      +
    353B  LEU      3.0     5.1    +      -       -      -
    354B  GLN*     4.5     3.5    -      -       -      +
    355B  LEU*     3.3    55.9    +      -       +      +
    360B  MET*     3.9     8.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 352 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    348B  LYS      3.1    12.0    +      -       -      -
    349B  ARG      3.0    19.6    +      -       -      -
    351B  ASP*     1.3    76.3    -      -       -      +
    353B  LEU*     1.3    64.0    +      -       -      +
    355B  LEU      4.9     2.4    -      -       -      +
    360B  MET*     4.2    20.4    -      -       -      +
    466B  ASP*     3.2    37.8    +      -       -      -
    467B  GLN      5.5     1.3    -      -       -      -
    517B  ARG*     4.1     4.9    +      -       -      -
    519B  GLN*     4.6     3.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 353 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349B  ARG      4.0     5.4    -      -       -      +
    350B  VAL*     2.9     6.4    +      -       -      +
    352B  SER*     1.3    88.3    -      -       -      +
    354B  GLN*     1.3    68.2    +      -       +      +
    355B  LEU      4.6     2.5    -      -       -      +
    517B  ARG*     3.2    33.0    -      -       -      +
    519B  GLN*     6.0     3.1    -      -       +      -
    287C  LEU*     3.9    30.1    -      -       +      -
    291C  MET*     6.3     0.9    -      -       -      -
    310C  GLN*     5.0     7.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 354 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350B  VAL*     3.1    39.3    +      -       +      +
    351B  ASP*     5.0     2.0    -      -       -      +
    353B  LEU*     1.3    82.5    -      -       +      +
    355B  LEU*     1.3    69.7    +      -       +      +
    356B  THR*     3.5     5.9    +      -       -      +
    359B  GLN*     4.6     1.6    -      -       -      +
    291C  MET*     4.0    11.7    -      -       +      +
    294C  GLU*     3.6    20.4    +      -       -      -
    304C  LYS*     3.9    22.8    -      -       -      +
    309C  GLU*     4.7     7.4    -      -       -      +
    310C  GLN*     3.4    41.8    +      -       +      +
    313C  HIS*     5.8     2.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 355 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351B  ASP*     3.3    47.2    +      -       +      +
    352B  SER      4.9     0.9    -      -       -      +
    353B  LEU      4.6     2.4    -      -       -      +
    354B  GLN*     1.3    83.2    +      -       +      +
    356B  THR*     1.3    69.6    +      -       -      +
    359B  GLN*     3.4    31.2    -      -       +      +
    360B  MET*     3.8    16.6    -      -       +      +
    363B  ASN*     3.6    26.0    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il